A temp fix until the main branch is fixed.

Hey there. I was having the same issue. After pounding my head against a wall and searching the forum, I decided to correct it myself in the library. This is a real fix, just a temp one, as any update will wipe out your changes. Of course, I should also mention that you will need to know how to make your own production build for a production system.

If you are making your own build, find the Slider.js file. I am still in development, so I just searched for "Ext.define('Ext.field.Slider', {" in the sencha-touch-all-debug.js build file that my app uses. There you can scroll down a bit and find this part:

Now you can listen for the drag event in you sliderfield. I didn't need the dragstart or the dragend events, but if you need them you can add them the same way. Just make sure that the parameters passed are correct for what is passed by the actual events in the Ext.slider.Slider object.

Now remember, this is just a plain old school hack. Hopefully this will be corrected in the main release soon as a slider that can't provide real time feedback is basically useless, at least in my opinion.

Oh, and don't forget that if you are updating the Slider.js file that nothing will happen unless you make a new build that includes the change. If you are using the debug version, just edit the build file provided. It's easier.